RFA: Remove gdb-events

[Eli Zaretskii]

> From: Tom Tromey <tromey@redhat.com>
> Reply-To: Tom Tromey <tromey@redhat.com>
> Date: Sat, 12 Jul 2008 18:15:38 -0600
> 
> +@deftypefun void architecture_changed (struct gdbarch *@var{newarch})
> +The current architecture has changed.  The argument @var{newarch} is
> +the new architecture.

The last sentence should say

  The argument @var{newarch} is a pointer to the new architecture.

Otherwise, the patch for observers.texi is OK.  Thanks.

And sorry for a late response (due to traveling).